Using FPGA operational amplifier to shape sine wave into square wave with 50% duty cycle.
First, you can input a 60MHZ sine wave, get a 60MHZ square wave by shaping (shaping circuit), and then divide it by FPGA, which is quite simple.
The second type: you can directly judge the scrambled signal, give it an initial value, shape it into a square wave, and finally divide it, and it's OK! ! ! (This method does not need shaping hardware circuit. )